WeakAuras: Track Cast by SpellID

Hello there.

I'd like to create a WeakAuras icon that would trigger when a spell is cast by my target, but the cast have to be tracked by Spell ID and not by Spell Name. So I tried to go through trigger > status > cast, but the only option available is Spell Name.

Do you know how can I manage to get it done? I'm far from being used to WeakAuras.